求翻译：业主方有经验的员工未能参与出厂试验，从而不能及时发现设计中的不足，导致不成熟的设计方案在现场调试时才发现，严重延误了工期。是什么意思？

The owners experienced staff unable to participate in the factory test, which can not be found design deficiencies in a timely manner, result in the immature design debugging at the scene only to find serious delays in the construction period.

Property owners have experienced staff who had not been able to participate in factory testing, and thus cannot be identified in a timely manner in the design, resulting in insufficient is not mature in the field of design for debug, we find serious delays the project.

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Owners experienced staff failed to participate in the test, and thus cannot be found in a timely manner in the design of low, leading to immature design found in the scene when debugging, seriously delayed the duration.

Industry the host's side experienced staff has not been able to participate in the exwork experiment, thus cannot discover promptly in the design the insufficiency, causes not the mature design proposal when the scene debugging only then discovered, has delayed the time limit for a project seriously